Author's Personal Copy Computers and Mathematics with Applications Multirange Multi-relaxation Time Shan–chen Model with Extended Equilibrium
Author's Personal Copy Computers and Mathematics with Applications Multirange Multi-relaxation Time Shan–chen Model with Extended Equilibrium
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通讯作者：
A. Kuzmin;A. A. Mohamad-A.
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作者：
A. Kuzmin;A. A. Mohamad-A.
在大多数情况下，作者被允许将他们的文章版本（例如以Word或Tex形式）发布到他们的个人网站或机构存储库。如果作者需要有关爱思唯尔存档和手稿政策的更多信息，请访问：关键词：多相流Shan-Chen模型表面张力多量程势气液密度比多弛豫时间a B s t r a c t本工作采用Sbra-gaglia等人开发的多量程Shan-Chen模型进行模拟。（2007）[18]，改进了Shan-Chen模型，增加了合适的表面张力项。通过引入矩阵碰撞算子和扩展的平衡态密度分布函数，密度比从100提高到160。多重弛豫时间（MRT）方法由于具有稳定性好、模拟的普朗特数不等于1以及与BGK单时间弛豫模型相比可以提高精度等优点而受到研究者的关注。我们最近的研究结果表明，MRT方法与多相流模型相结合，可以提高可实现的气液密度比。
In most cases authors are permitted to post their version of the article (e.g. in Word or Tex form) to their personal website or institutional repository. Authors requiring further information regarding Elsevier's archiving and manuscript policies are encouraged to visit: Keywords: Multiphase flow Shan–Chen model Surface tension Multirange potential Gas–liquid density ratio Multi-relaxation time a b s t r a c t The work presents simulations with the multirange Shan–Chen model developed by Sbra-gaglia et al. (2007) [18], which improved the Shan–Chen model for the proper surface tension term. Also, by introducing the matrix collision operator and extended equilibrium density distribution function, the density ratio is increased from 100 to 160. The Multi-Relaxation Time (MRT) method attracted the attention of researchers due to several advantages , such as better stability, simulations with Prandtl number different from unity, and possibilities to improve the accuracy of the scheme compared with BGK Single Time Relaxation model. Our recent results have shown that the combination of MRT methods with multiphase flow models can improve the achievable gas–liquid density ratio.